Effect of Nitrogen Management Practices on Growth And Yield of Wheat (Triticum aestivum L.)

The field experiment entitled “Effect of Nitrogen Management Practices on Growth and Yield of Wheat (Triticum aestivum L.)” was conducted during rabi season of 2024–25 at Crop Research Farm, Department of Agronomy, Tantia University, Sri Ganganagar, Rajasthan (India). The experiment was laid out in Randomized Block Design (RBD) with eight treatments replicated thrice viz., T₁: Control; T₂: 75% RDN; T₃: 100% RDN; T₄: 75% RDN + PGPR; T₅: 75% RDN + Conventional urea spray (2%); T₆: 75% RDN + Nano urea spray (2 ml/L); T₇: 75% RDN + PGPR + Conventional urea spray (2%); T₈: 75% RDN + PGPR + Nano urea spray. The results revealed that significantly higher plant height (at 60, 90 DAS and harvest), leaf length (at 60 and 90 DAS), number of leaves/plants (at 60 and 90 DAS) and number of tillers per m² (at 60 and 90 DAS) was recorded with 75 % RDN + PGPR + Nano urea spray (2 ml/L), which was found statistically at par with 75 % RDN + PGPR + Conventional urea spray followed by 100 % RDN and 75 % RDN + Nano urea spray (2 ml/L). The significantly higher number of effective tillers per m², spike length, grains per spike, test weight, grain, straw and biological yield as well as harvest index of wheat was recorded with 75 % RDN + PGPR + Nano urea spray (2 ml/L), which was found statistically at par with 75 % RDN + PGPR + Conventional urea spray followed by 100 % RDN and 75 % RDN + Nano urea spray (2 ml/L). Based on the findings of present investigation, it may conclude that application of 75 % RDN + PGPR + Nano urea spray (2 ml/L) gave higher growth, yield attributes and yield of wheat cultivation.